Fix diff_div.html so that it can handle data dictionaries without the new diffs_title list introduced in r7879.
Fix diff_div.html so that it can handle data dictionaries without the new diffs_title list introduced in r7879.


git-svn-id: 0d96b0c1a6983ccc08b3732614f4d6bfcf9cbb42@7887 af82e41b-90c4-0310-8c96-b1721e28e2e2

rbaumg/trac,rbaumg/trac,rbaumg/trac,rbaumg/trac